I only need help with question E. Using data set G, answer the questions given below. DATA SET G Mileage and Vehicle Weight(n = 73 vehicles) Vehicle City MPG Weight Vehicle City MPG Weight Acura CL 20 3,968 Land Rover Range Rover Sport 13 5,137 Audi A5 22 3,583 Lexus IS 250 21 3,461 BMW 4 Series 428i 22 3,470 Lexus LS 460 16 4,233 BMW X1 sDrive28i 23 3,527 Lexus RX 350 18 4,178 Buice LaCrosse 18 3,990 Lincoln MKT 17 4,702 Buick Enclave 17 4,724 Lincoln MKZ 22 3,713 Buick Regal 21 3,692 Lincoln Navigator 14 5,794 Cadillac ATS 22 3,315 Mazda 2 28 2,306 Cadillac CTS 20 3,616 Mazda CX-5 Sport 26 3,194 Cadillac Escalade 14 5,527 Mercedes-Benz C-250 22 3,428 Chevrolet Camaro 1SS 16 3,719 Mercedes-Benz CL600 12 4,894 Chevrolet Cruze LS 26 3,097 Mercedes-Benz ML350 17 4,751 Chevrolet Impala LTZ 19 3,800 Mini-Cooper 29 2,605 Chevrolet Malibu 2LT 25 3,532 Mitsubishi Outlander Sport SE 25 3,296 Chevrolet Spark LS 31 2,269 Nissan Armada SV 13 5,267 Chevrolet Suburban LTZ 15 5,674 Nissan Cube S 25 2,789 Chrysler 200 Touring LX 20 3,402 Nissan Maxima SV 19 3,570 Chrysler 300 S 19 4,029 Nissan Murano SV 18 4,011 Dodge Charger SXT 16 3,996 Nissan Versa S 27 2,363 Dodge Dart Limited 23 3,242 Porsche Cayenne 15 4,398 Fiat 500 Sport 31 2,434 Scion FR-S 25 2,806 Ford Fiesta S 29 2,575 Scion iQ 36 2,127 Ford Focus SE 27 2,960 Scion XD 27 2,665 Ford Mustang GT 15 3,618 Suburu Forester 2.5i Limited 24 3,419 Ford Taurus 19 4,054 Suburu Legacy 2.5i Limited 24 3,427 Honda Accord LX 24 3,192 Toyota Camry XLE 25 3280 Honda CRV LX 23 3,305 Toyota Land Cruiser 13 5,765 Hyundai Azera Limited 19 3,605 Toyota RAV4 XLE 24 3,465 Hyundai Genesis 5.0 15 4,240 Toyota Yaris 30 2,295 Hyundai Santa Fe GLS 18 3,933 Volkswagen Beetle 2.5L 22 3,038 Infiniti Q60 19 3,633 Volkswagen Jetta SE 25 3,070 Infiniti QX50 17 3,790 Volkswagen Toureg V6 Sport 17 4,711 Jaguar F-Type 20 3,477 Volkswagen Passat SE 24 3,230 Jeep Compass Limited 21 3,258 Volvo S60 T5 21 3,528 Jeep Grand Cherokee Limited 17 4,685 Volvo XC90 16 4,667 Kia Forte LX 25 2,776 Kia Soul 24 2,615 Kia Sportage LX 21 3,186 Click here for the Excel Data Set G Choose the dependent variable (the response variable to be "explained") and the independent variable (the predictor or explanatory variable). (a-1) Dependent Variablecity MPG (a-2) Independent VariableWeight (b) Obtain the regression equation. (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.) Y = X + (c) Calculate R2. (Round your answer to 4 decimal places.) R2 0.7959 (d-1) Zero is contained in the 95% confidence interval. No (d-2) The slope is different from zero. Yes (e) Calculate the degrees of freedom and t-critical for a two-tailed t test for zero slope at α = 5 .05. (Round your answers to 2 decimal places.) Degrees of freedom t - critical ±
I only need help with question E.
Using data set G, answer the questions given below.
DATA SET G Mileage and Vehicle Weight (n = 73 vehicles) |
||||||||||||||
Vehicle | City MPG | Weight | Vehicle | City MPG | Weight | |||||||||
Acura CL | 20 | 3,968 | Land Rover |
13 | 5,137 | |||||||||
Audi A5 | 22 | 3,583 | Lexus IS 250 | 21 | 3,461 | |||||||||
BMW 4 Series 428i | 22 | 3,470 | Lexus LS 460 | 16 | 4,233 | |||||||||
BMW X1 sDrive28i | 23 | 3,527 | Lexus RX 350 | 18 | 4,178 | |||||||||
Buice LaCrosse | 18 | 3,990 | Lincoln MKT | 17 | 4,702 | |||||||||
Buick Enclave | 17 | 4,724 | Lincoln MKZ | 22 | 3,713 | |||||||||
Buick Regal | 21 | 3,692 | Lincoln Navigator | 14 | 5,794 | |||||||||
Cadillac ATS | 22 | 3,315 | Mazda 2 | 28 | 2,306 | |||||||||
Cadillac CTS | 20 | 3,616 | Mazda CX-5 Sport | 26 | 3,194 | |||||||||
Cadillac Escalade | 14 | 5,527 | Mercedes-Benz C-250 | 22 | 3,428 | |||||||||
Chevrolet Camaro 1SS | 16 | 3,719 | Mercedes-Benz CL600 | 12 | 4,894 | |||||||||
Chevrolet Cruze LS | 26 | 3,097 | Mercedes-Benz ML350 | 17 | 4,751 | |||||||||
Chevrolet Impala LTZ | 19 | 3,800 | Mini-Cooper | 29 | 2,605 | |||||||||
Chevrolet Malibu 2LT | 25 | 3,532 | Mitsubishi Outlander Sport SE | 25 | 3,296 | |||||||||
Chevrolet Spark LS | 31 | 2,269 | Nissan Armada SV | 13 | 5,267 | |||||||||
Chevrolet Suburban LTZ | 15 | 5,674 | Nissan Cube S | 25 | 2,789 | |||||||||
Chrysler 200 Touring LX | 20 | 3,402 | Nissan |
19 | 3,570 | |||||||||
Chrysler 300 S | 19 | 4,029 | Nissan Murano SV | 18 | 4,011 | |||||||||
Dodge Charger SXT | 16 | 3,996 | Nissan Versa S | 27 | 2,363 | |||||||||
Dodge Dart Limited | 23 | 3,242 | Porsche Cayenne | 15 | 4,398 | |||||||||
Fiat 500 Sport | 31 | 2,434 | Scion FR-S | 25 | 2,806 | |||||||||
Ford Fiesta S | 29 | 2,575 | Scion iQ | 36 | 2,127 | |||||||||
Ford Focus SE | 27 | 2,960 | Scion XD | 27 | 2,665 | |||||||||
Ford Mustang GT | 15 | 3,618 | Suburu Forester 2.5i Limited | 24 | 3,419 | |||||||||
Ford Taurus | 19 | 4,054 | Suburu Legacy 2.5i Limited | 24 | 3,427 | |||||||||
Honda Accord LX | 24 | 3,192 | Toyota Camry XLE | 25 | 3280 | |||||||||
Honda CRV LX | 23 | 3,305 | Toyota Land Cruiser | 13 | 5,765 | |||||||||
Hyundai Azera Limited | 19 | 3,605 | Toyota RAV4 XLE | 24 | 3,465 | |||||||||
Hyundai Genesis 5.0 | 15 | 4,240 | Toyota Yaris | 30 | 2,295 | |||||||||
Hyundai Santa Fe GLS | 18 | 3,933 | Volkswagen Beetle 2.5L | 22 | 3,038 | |||||||||
Infiniti Q60 | 19 | 3,633 | Volkswagen Jetta SE | 25 | 3,070 | |||||||||
Infiniti QX50 | 17 | 3,790 | Volkswagen Toureg V6 Sport | 17 | 4,711 | |||||||||
Jaguar F-Type | 20 | 3,477 | Volkswagen Passat SE | 24 | 3,230 | |||||||||
Jeep Compass Limited | 21 | 3,258 | Volvo S60 T5 | 21 | 3,528 | |||||||||
Jeep Grand Cherokee Limited | 17 | 4,685 | Volvo XC90 | 16 | 4,667 | |||||||||
Kia Forte LX | 25 | 2,776 | ||||||||||||
Kia Soul | 24 | 2,615 | ||||||||||||
Kia Sportage LX | 21 | 3,186 | ||||||||||||
Click here for the Excel Data Set G
Choose the dependent variable (the response variable to be "explained") and the independent variable (the predictor or explanatory variable).
(a-1) Dependent Variable
city MPG
(a-2) Independent Variable
Weight
(b) Obtain the regression equation. (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.)
Y = X +
(c) Calculate R2. (Round your answer to 4 decimal places.)
R2 0.7959
(d-1) Zero is contained in the 95% confidence interval.
No
(d-2) The slope is different from zero.
-
Yes
(e) Calculate the degrees of freedom and t-critical for a two-tailed t test for zero slope at α = 5 .05. (Round your answers to 2 decimal places.)
Degrees of freedom | |
t - critical | ± |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images